A new Mac trojan has been discovered infecting visitors to a Dalai Lama website.
F-Secure spotted the simple backdoor dubbed Dockster which could log keystrokes.
It exploited the same patched Java vulnerability (CVE-2012-0507) used by the password-stealing Flashback trojan which infected potentially hundreds of thousands of Macs.
The unofficial Dalai Lama site was also serving a Windows exploit (Trojan.Agent.AXMO) which took advantage of a separate Java vulnerability that was patched with an emergency fix on 30 August.
The malware appeared to be the latest in a string of sustained attacks against Tibetan activists.
The latest versions of Mac OS X were immune from the threat.
"Current versions of Mac OS X and those with their browser's Java plug-in disabled should be safe from the exploit," F-Secure security adviser Sean Sullivan said.